Do I remove the the plastic collars in the 5 series wheels and replace them with the "converters I purchased or do I put the converter on the hub and mount the wheels. It appears the conveter rings will not fit in the wheel with the ring that is in there now. Any help out there.

Do I remove the the plastic collars in the 5 series bmw wheels and replace them with the "converters I purchased or do I put the converter on the hub and mount the wheels. It appears the conveter rings will not fit in the wheel with the ring that is in there now. Any help out there.

The easiest solution for your problem is to check the size of your unit first to avoid regrets in the future. I you're trying to fit the 5 series wheels to 7 series, chances are the converters might not be fitted on the rims. If that is the case, the converter rings will crack. My advice: Don't ever try doing things which you know are wrong. Not that way.